Thread cutting temple for looms



Feb. 16, 1932. T. C. WILSON 1,845,382.v

THREAD CUTTING TEMPLE FOR LOOMS Filed June 5, 1931 l In: im I5 I7 I4 I6 l l l I9 lli h l s H152 I I |u I' i." F'G 2 IO IIl I p lvl 'bl ll n A. Nh@ ,up @I 7 W/TNESS. INVENTOR.

THoM/ s C. WILSON.

CL//vTo/v 6. Casus/v.

BY M WM;

A TTORNE Y.

" the tail piece.

Patented Feb. 16, 1932 I UNITED STATES THOMAs c. WILSON, or PORT MILL, SOUTHl CAROLINA, L.AssIeNOR To DRAPER CORPORATION, or HOPEDALE, MASSACHUSETTS, A CORPORATION or MAINE THREAD CUTTING TEMPLE POR IiooMs` Application filed :rune 5,' 1931.u serial No. 542,351.

This invention relates to thread cutting temples for looms.

A principal object of my invention is to provide a thread cutter which shall be simple in construction and eflicient in operation. l

Further objects will bespecifically pointed out hereinafter, and other objects will become apparent as the'desoriptionproceeds. Y Y

and shearing theV filling. As the lay recedes In the drawings:

Fig. l is aplan view of a temple head em bodying my invention. .Y

Fig. 2 is a side elevation of the construction shown in Fig. 1, and i Fig. 3 is a view similar to Fig. 2, but show,- ing parts of the head cut away to disclose tlie cutter mounted therein.

I have illustrated my invention in connec-A tion with a Well known-form of temple. This temple includes a temple bar 1 adapted to be yieldingly supported on a loom adjaco-operating with a single ledger blade this structure may be changed as desired. The cutter member is provided with stops having angularly disposed faces and 11 normally contacting similarly disposed faces 12 fand 13 on the head. Y

A coil spring 14 has one end secured, as at 15, to the tail piece and the other endsecured, as at 16, to the temple head. A supporting member 17 is provided having one end pivotally supported on a-pin 18, on the head, and the other end pivoted on the pin on The operation of this cutter is as follows: The spring 14 and supporting member 17 normally retain faces 10 and 11 in Contact with faces 12 and 13 respectively. `As the lay beats up, the lay, or a suitable part procauses the cutter member to pivot about point 19 until the cutter blade 7 is lowered to its lowestposition. This movement hooks the blade; about the iilling. Continued movement of the lay will then Vcause the cutter member to slide longitudinally ofthe arm 6, thus drawingthe blade 7 past its ledger blade the spring 14 will return the cutter member to its initial position.: i n

It has been proposed heretofore to provide similar cutter members with a spring somewhat Vsimilar in appearance to the present supporting member 17 This spring consist ed of a torsion part supported on the pin 18 so that the arm correspon'dingto the de-v pending armof my supporting member acted as a spring.

This constructionhas not, in some cases,

proven entirely satisfactory.` As the eye at the lower end of the spring arm wore it al-v lowed the cutter member to kdrop down; consequently, faces ksuch as 11 and 13 were not in contact with each other, and operation of the tail piece by the lay would cause the end ofthe cutter member opposite the blade to rise until such faces came into contact withV I eachother. This resulted in a slight change in the time of movement ofthe cutter blade downwardly. Also, with the old construction the resistance of the spring to sliding movement of the cutter member was sometimes insufiicientto efl'ectuallyjcause vthe blade tov rock about its pivot point before starting to slide. These two unintended changes in the timingl of the rocking movement often re-` behind the filling, with the result that the fillingwould not be cut. g'

VIt will readily be seen thatfwith my conly eliminated, for the supporting member 17 pivots -freelv about the pins'to which it isl attached and is not subject `to such 'rapidVV Vsulted in failure of the cutter blade to hook Vstruction the foregoing defects are eifectuall v A wear, and thearrangement `of the spring ,isv

ysuch as to :always cause the cutter blade-to dropdown behind the filling before'starting towithdraw. f

I claim as my invention:

1. A loom temple including a temple bar; a temple head sup-ported by said bar; a rockable and slidable cutter member supported in a guideway in said head, Said cutter member including a rearwardly extending arm having a depending cutter blade at lone end thereof and a'depending tail .piece at the other end thereof; a coil spring having one end secured to said tail piece and the other end secured to saidhead so as to extend diagonally of said arm and said tail piece, Vand a supplemental supporting member for the extreme forward end of said arm.

2. A loom temple including a temple bar; a temple head Supported by said bar; a rockable and slidable cutter member supportedV ina guideway in said head and including a rearwardly extending arm having a Ydepending Glitter blade at one end thereof and a depending tail piece at the other end thereof, said arm sliding in said gnideway; stops von said cutter member having angularly related` faces adapted to contact corresponding faces on .said headgva coil spring having one end secured to said tail piece and the other end secured to said head so as to extend diagonally of said arm and said tail piece; and a supporting member forsaid cutter member, having one end pivoted to said tail piece and the other end pivoted to said head, whereby faces of both said Stops are yieldingly maintained in contact With the said-faces on said head.

THOMAS C. WILSON.

Si) l 

